Car-coupling



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J.-B.-H. CHAPMAN.-

GAR COUPLING.

No. 264,929. 7 Patented Sept. 26', 1882.

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' J. E. H. CHAPMAN.

UAR COUPLING:

No. 264,929. Patented Sept. 26, 1882.

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J. E. H. CHAPMAN. GAR GOUPLING.

N0. 264,929. Patented Sept. 26, 1882.

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or assistance of any one.

UNITED STATES PATENT @FFICE.

JOHN H. CHAPMAN, OF HARRISBURG, TEXAS.

CAR-COUPLING.

SPECIFICATION forming part of Letters Pateiit No. 264,929, datedSeptember 26, 1882;"

Application filed April25,18 B2. tNomodel.) a

10 all whom it may concern Be it known that I, J OHN EDWARD HOWDCHAPMAN, residing at Harrisburg, county of Harris, and State of Texas,have invented a new and Improved SelfiCoupler for Freight- (Jars, ofwhich the following is the specification.

My invention relates to improvements in freight-car couplers in whichthe cars are coupled when brought together without the aid It obviatesthe necessity of any one going between the cars while being coupled. Iattain the object of the invention by the mechanism illustrated in theaccompanying drawings, in which- Figure l is a vertical section of thehalf of the coupler with pin-catcher, spring, stop, and safety-pin. Fig.2 is a perspective view of the lower half of the coupler, showing thethree beveled planes, also the horizontal and perpendicular circles,throat, slot, and size in width and sides. Fig. 3 is a perspective viewof the pin-catcher partly turned, so as to show the top of pin-catcherand partial view of the side and stop, without the spring or safety pin,all of stop, and safety-pin, the stop to be of wrought-iron.

Similar letters refer to similar parts throughout the several views. 7

In Fig. 1, B represents the base line or face ofthecoupler. representsthe center-line of the entirecoupler. ThelineBis thirteen (13)inches.The line 0 is twenty (20) inches. L and L are five inches on either sideof the center-line on the line B. D and D are one and threeeighths (1%)inch on either side of the line C, and two and one-half (2%) inches fromtheline I B from L L to D D gives the first beveled plane for the upperand lower half of the coupler. 0n the beveled plane L D on the lowerhalf of the coupler commences the second beveled plane one andeleven-sixteenths (1%) inch from the line (3, and two and onefourth(25;) inches from the. line B marked at p to a point, b,three andfive-eighths (3%)inches from the line B on the plane D K one andthree-eighths (1%) inch from the line C. On the beveled plane L D, onthe upper half of the coupler, commences the second beveled plane of theupper half of the coupler at a point, h, two (2) inches from the lineBand two and oneeighth (2%) inches from the line C to a point, i, on theplane I) K, four and three-fourths 4g) inches from the line B, and .oneand three. eighths (1%) inch from the line C. K and K are seven andthree fourths 7%) inches from the line B, and one and one-fourth (1 inchon either side of thelineO. Thepoints iKof the upper half and I) K ofthe lower half of the coupler form the third beveled plane of thecoupler. Draw a line from K on either side of the line U-to the figures10 on either side of the lineO twenty inches from the line B, and oneand three-fourthsflg) inch on either side of the line 0. A and A are onthe line B six and one'halfwg) inchest'rorn the line 0, the corners ofwhich are rounded off to one-eighth g) of an inch on either side. Placeyour compass on the line B three and one-half (3%) inches on either sideof the lineUatIof three and oneeighth (3%.) inches radius to a point, H,one inch from the line B, parallel with the line 0, and scribe acircletoa point, G,- five and threeeighths (5%) inches from the line 0 and twoand one-half(2) inches from the line B. Then from G, on either side ofthe line C, to J, six (6)inches from the line B and five andthree-eighths (5%) inchesfrom thelineO,connectthese points with astraight line. Draw a line from J to P four (4) inches on either side ofthe line C, and six (6) inches from the line B. Scribe a circle from Pto V two and threefourths (2%) inches on either side of the line C "andseven (7) inches from the line B, with compass at one and onefourth(12;)inoh radius, using the concave side of circle. Then draw a linefrom V to W two and five-eighths inches on either side ofthe line C andtwenty (20) inches from the line B. This part of the coupler may bealtered to suit the convenience of the person making the pattern for thecoupler, and the stop to suit in length, according to the manner inwhich the coupler is intended to be fastened, either by a pin oryoke-bar to the car, from the points from V to W and K to 10, with thisexception, that it or the inside must not be made smaller than three andone-fourth (3%) inches at the point 0 a slot, 0, two and one half (2%)inches long on the lower and upper half of coupler, the back part ofwhich is seventeen and three-fourths (17%) inches from the line B, oneand three-eighths (1%) inch broad in the cen- 2' v 4 edited ter of theupper and lower half of coupler. F represents the pin catcher complete,with spring, stop,and safety-pin. It is two and onehalf(2-) inchesindepth by four and one-half(4) inches in width, sixteen (16) inches inlength, described by m on the upper corner and M at a point one andone-fourth (1%,) inch from or, called the base-line of pin-catcher. O,the center-line. From M to apoint, N, one and oneeighth (1%) of an inchfrom a line drawn across the piece in the direction of the line or M,take out the part scribed by a circle of one (1) inch radius from apoint one (1) inch from the line C, and one-fourth (i) of an inch fromline 00 M drawn across the piece. The point N being one and one-fourth(19;) inch from the line 0, draw a line from m to a point two (2) inchesfrom the linear M marked 0, one and one-'fourth 1g) inch from the lineC. From the point N draw a line seven-eighths of an inch to a point two(2) inches from base-line and one and one-fourth (1%) inch from the line0 marked 0. From the points 0, on either side of the line C, draw acircle of one and three-fourths (1%) inch radius to a point, a, three(3) inches from the base-line a0 M,and three-fourths (5%) of an inch oneither side of the line C, using the convex side of the circle. From a,on either side of the line C, draw aline to a point, Q, on either sideof the line C, three-fourths g) of an inch from the line 0, seven andone-fourth (7%) inches from the base-line w M. From Q, on either side ofthe line C, scribe a circle of one (1) inch radius to a point, B, oneither side of the line 0 one (1) inch, and one (1) inch from Q, usingthe convex side of the circle, making'a shoulder for spring. The pointsor space between a and Q should be round from the shoulder, five-eighthsg of an inch on either side of .the line C to a point seven andone-halfflg) inches from shoulder of the same size throughout beinground, one (1) inch from the end of which drill a hole through theperpendicular way seven-sixteenths (1%) of an inch diameter for a No. 42cotter-key for a safetypin. E represents the hole for the couplingpin,one and five-eighths 15 inch in diameter, the center of which is threeand threefourths (3%) inches from the base-line or B. Y represents thesides described in Fig. 2. The spring S is made of one-eighth of an inchspring steel wire, having ten (10) coils in five (5) inches. The springmust be six and onehalf (6%) inches long, the inside measuring one andone-half (1%) inch. The stop 3, or rather the stop T, is described inFig. 3.

In Fig. 2, B and B represent the base-line, as in Fig. 1. A and Arepresent theoutside measure or points, as in Fig. 1. The width of thecoupler at A, or from A to A, is nine (9) inches, and from L to L six(6) inches, inside measure. From the point f, five and seveneighths (5%)inches from the line B, two and one-fourth (2%) inches from the line Con either side, commences the circle of the perpendicular to l, six andseven-eighths (6%) inches from the line B 5 also, the circle of thehorizon- 10 andV to W.

tal commences at f. The circle of the per pendicular has a radius of oneand five-eighths (1%) of an'inch. The circle of the horizontal has aradius of two and three-eighths (2%) inches to a point six andseven-eighths (6%) inches from the line B and one and one-fourth (1.inch on either side of the line 0 on the plane of D K; also, the circleof the horizontal commences at I, this being the middle of the coupler,with a radius of two and threeeighths (2%) of an inch toa point sevenand three-fourths (7 inches from the line B, and one and one-fourth (1%)inch on either side of the line C, forming a throat, Z. The throat mustbe one and one fourth (1%) inch in length. 1% represents the hole forcouplingpin describedin Fig.1. Y represents the sides described by thebeveled planes L, d, b, and K on the lower half of coupler, and L h i K,Fig. 1, for the upper part of coupler. From the points A, on either sideof thecoupler, draw a line to a point, V, seven (7) inches from the lineB and three and one-fourth (32;) inches on either side of the line 0,making the coupler at this point five and one-half by six and one-half,outside measure, from the throat Z to c is the slotvin lower half of thecoupler.

In Fig. 3, x and M, as in Fig. 1, are the baseline of pin-catcher. Thecircle of the perpendicular commences at m; also,the circle of thehorizontal, corresponding with the circles in Fig. 2,f and L. Thecircleof the horizontal extends to a point within one-fourth (i) of aninch on either side of the line C, with a radius of two andthree-eighths (2%) inches. 0n the upper and lower sides the circle ofthe perpen-- dicular must correspond with each other. At a point one (1)inch from w commences the circle of the horizontal, it being the middleof the pin-catcher, with a radius of two and threeeighths (2%) inches,corresponding with the horizontal circle commencing at Z in Fig. 2. Thiscircle includes the circle from N to 0, being one-fourth 3inch on eitherside of the line C and two (2) inches from the line 0:.M. From thepoints 0, at two (2) inches from the line a: M on either side of theline 0, being round at this point, scribe the circle to a, as in Fig. 1,the other points being described in Fig. 1. The stop T is a doubleT-headvbar of one (1) inch square, wrought-iron, swelled in the middleto a size not exceeding two and three eighths (2%) inches in width, ahole IIO through the center of flat side of one and onehalt (1, inchdiameter for the pin-catcher to slide in. The length between the headsis five and one-half (5%) inches. The double T-heads should extendone-half inch over the bar in the direction of the swelled side, so thatwhen ler has been invented with a beveled surface similar to the one Ihave invented from L to D,

i Fig. 1; but I am not aware that said coupler would couple carsdifiering in height three and bevels or planes on the upper half, L h '5K, connected with a perpendicularly concave surface, f I, also ahorizontal concave surface connecting the sides, all substantially asset forth.

2. The combination, in a self-coupler, of the pin-catcher 1', which hasattached to a coilspring, S, a double P -head stop, T, a safetypin, U,and a slot, 0, in the body of the coupler, having a convex surfaceperpendicularly and horizontally corresponding with f Z, allsubstantially as described and set forth.

JOHN EDWARD HOWD CHAPMAN.

Witnesses:

JAMES ROBERT (JADE, AUGUSTUS HENRY SHEPPERD.

